Bisolvon : Boehringer Ingelheim. No.1, Carl Frei 112 keyless concert organ.
- Date:
- [approximately 1970]
Licence: In copyright
Credit: Bisolvon : Boehringer Ingelheim. No.1, Carl Frei 112 keyless concert organ. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/b28642491_0002.jp2/full/800%2C/0/default.jpg)
Licence: In copyright
Credit: Bisolvon : Boehringer Ingelheim. No.1, Carl Frei 112 keyless concert organ. Source: Wellcome Collection.